ACI BN2120-O
SKU: CS6289606MPN: BN2120-OAlternate Part #: 146543
BACnet MS/TP, Modbus RTU, Relative Humidity Sensor, Outside, Euro Enclosure

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Product Details
BACnet MS/TP, Modbus RTU, Relative Humidity Sensor, Outside, Euro Enclosure
Product Configuration
| Category | Humidity |
|---|
Product Family Specifications
| Resolution | +/- 0.1º | +/- 0.1% |
|---|---|
| Product Weight | 0.72 lbs. (0.33 kg) |
| Supply Current | 25 mA maximum (0.67 VA) |
| Supply Voltage | 12 to 36 VDC / 24 VAC +/- 10%, 50/60 Hz (Reverse Polarity Protected) |
| Agency Approvals | BTL Certified, CE, RoHS2, WEEE, China RoHS |
| Maximum Distance | 4000 ft (1219 m) |
| Temperature Units | ºF (Factory Default), ºC, ºK (Field Configurable) |
| Operating RH Range | 10 to 95% RH, non-condensing |
| Output Update Rate | 4 seconds |
| Product Dimensions | 7.00” (177.8 mm) x 5.00” (127 mm) x 3.00” (76.2 mm) |
| Network Addressable | 0 \= Factory Default | 1-127 \= Field Selectable |
| RH Measurement Range | +/- 2% from 10 to 90% RH |
| Supported Baud Rates | Auto Baud (Factory Default) | 9600, 19200, 38400, 57600, 76800, 115200 (Field Selectable) |
| Tri-Color Status LED | Connection Status |
| RH Calibration Offset | +/- 10% RH (Field Configurable) |
| Communication Protocol | BACnet™ MS/TP or Modbus RTU \= Field Selectable; EIA RS-485 |
| Connections | Wire Size | Screw Terminal Blocks | 16 AWG (1.31 mm2) to 22 AWG (0.33 mm2) |
| Accuracy @ 77°F (25°C) | +/- 1.0 ºF (+/- 0.5ºC) |
| Storage Temperature Range | -40 to 185ºF (-40 to 85ºC) |
| RH Sensing Tube | Diameter | Aluminum | 1.125” (28.58 mm) |
| Enclosure Temperature Rating | -40 to 190ºF (-40 to 88ºC) |
| Temperature Measurement Range | -40 to 176ºF (-40 to 80ºC) |
| Temperature Calibration Offset | +/- 9ºF (+/- 5ºC) (Field Configurable) |
| Temperature Sensing Tube Diameter | Polycarbonate / ASA with UV Protectant | 0.86“ (21.85 mm) |
| End of Line Termination Resistance | 120 Ohms Termination Resistance (Field Selectable) |
| Modbus Data Bits / Parity / Stop Bit | 8 Data Bits | None/Even/Odd \= Field Selectable | 1 or 2\= Field Selectable |
| Transmitter Operating Temperature Range | -40 to 176ºF (-40 to 80ºC) |
| Enclosure Material | Flammability Rating | Polycarbonate / ASA with UV Protectant | UL94-V0 |
Specifications
| SKU | CS6289606 |
|---|---|
| MPN | BN2120-O |
| Alternate Part # | 146543 |










